| 摘要 |
A device (1) for frothing a liquid comprises a chamber (10) which is provided with supply means (11) for supplying the liquid to be frothed and frothing gas, and outlet means (12) for letting out frothed liquid, and for letting out excess frothing gas. In conventional frothing devices, the amount of the air is precisely determined and controlled, so that a predetermined froth quality is guaranteed. When there is a supply of excess air, the froth quality can still be achieved, namely by discharging the excess air, wherein interaction of the excess air with the frothed liquid is avoided. In particular, the chamber (10) may be adapted to perform a cyclonic separation process on the frothed liquid and the excess air. The outlet means may comprise a single tube-shaped element (12) for letting out both a flow of frothed liquid and a flow of excess air. |
